Hello George,
DSD = Donald S. Dugdale, with whom I used to correspond. He lodged substantial work in the Manx Museum library many years ago, about land, farms and people in Andreas, and which formed the basis of the book 'Andreas' edited by Sally McCambridge (2005). Unfortunately DSD died while the book was being put together, so didn't get the chance to make corrections/additions to much of his earlier work.
Tom Corteen's Maughold transcripts have only John Callow & Margaret Joghin married 12 Nov. 1715. It is possible that Margaret came from Philip Allen's Bride/Maughold Joughin family - I'll ask.
There were two Daniel Joughins having children bapt in Maughold around that time, who could have been married in 1715, including a Margaret daur of Daniel Joghin bapt.16 Oct 1681 (too old?).
Sue